An OpenGL Quake3 Arena Map Viewer, written in c++. It supports a variety of features including volumetric fog, portals/mirrors, items, basic entities, skyboxes/cloudlayers, videotextures and multitexturing for up to 6 texture units. [Open source, GPL]
Create 2D and 3D games using a visual interface and a JavaScript style programming language. Latest versions includes support for pixel and vertex shaders, physics and high-quality rendering.